• 实验尝试使用尿素水溶液浸泡杉木根后再蒸气法提取杉木根精油

    In our experiment, essential oil was attempted to extract from fir immersed in urea solution.

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  • 采用微波辐照技术提取制备柠檬醛,使山苍子精油提取率较传统直接水蒸气蒸馏平均提高36.5%以上

    By microwave irradiation, the citral was obtained from Litea cubeba fruits, the yield was risen in average 36.5% than by traditional distillation in a current of steam.

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  • :分别采用蒸气蒸馏提醇制成口服液

    Methods:Oral liquid was made by steam distillation, alcohol abstraction method, water abstraction and alcohol precipitation.

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  • 纸浆黑液催化剂,用天平等温研究变质无烟煤常压纯水蒸气催化气化反应。

    Using black liquor of paper pulp plant as catalyst, the steam gasification of high metamorphosed anthracites was investigated by isothermal thermo-gravimetric analysis under ambient pressure.

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  • 采用蒸气蒸馏研究了中国日本各地33份紫苏试材芳香油含量。

    The aromatic oil in 33 samples of Perilla collected from China and Japan is studied by using steam distillation.

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  • 目的探索蒸气蒸馏提取大蒜最佳工艺。

    OBJECTIVE To establish the optimum conditions for the vapour distillation of the garlic oil.

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  • 采用蒸气蒸馏枳壳中提取挥发油

    Methods The volatile oil was obtained from PPFA by steam distillation.

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  • 采用蒸气蒸馏提取粉中的精油

    The essential oil from wood was extracted by steam distillation.

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  • 采用原子蒸气激光诱导荧光测量钆原子第一激发态同位素位移及超精细结构、原子跃迁自发辐射分支原子蒸气束的多普勒宽度

    The isotope shifts, hyperfine structure, spontaneous emission branch ratio of the first excited level and Doppler width of the atom vapor beam were measured using laser induced fluorescence.

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  • 采用蒸气蒸馏提取精制香椒子中的挥发油

    The volatile oils of Zanthoxylum schinifolium were extracted by water vapor distillation.

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  • 根据最小自由能原理推导维迭代计算蒸气中各分子组分平衡分区组成

    According to the minimum Gibbs energy principle, a calculation method for equilibrium partial pressure and composition of molecule component has been derived.

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  • 本文用蒸气研究了纯锌真空蒸发的基本规律

    The basic evaporation laws of zinc in vacuum are studied.

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  • 蒸气蒸馏有机溶剂萃取超临界流体萃取

    The extraction methods are water extraction, organic solvent extraction and supercritical fluid extraction.

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  • 结论:直接蒸气蒸馏可以作为实验室提取皮酚最佳

    Conclusion: Steam distillation is the most proper extraction method of paeonol from cortex moutan.

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  • 工作重量测量了蒸气液体十一种高聚物薄膜中的透过速率。

    The permeability constants of both liquid water and water vapour through eleven polymer films have been measured at three temperatures by weighing method.

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  • 因此本文石油渣油原料通过蒸气活化、化学活化模板制备多孔炭材料

    Thus, we studied the preparation of porous carbons using oil residues as raw materials by traditional steam activation, NaOH activation and template-like method respectively.

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  • 通过正交试验研究蒸气蒸馏提取六安地产生姜精油工艺

    Technology of refined oil of ginger in Lu 'an extracted by steam distillation was studied on orthogonal experiment in this paper.

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  • 采用蒸气蒸馏中提取挥发油,出油率分别为1

    The volatile oil was extracted from Cinnamomum wilsonii leaf and twig with the steam distillation and the yield was 1.

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  • 常规水蒸气蒸馏提取杜克蓝莓果实中的挥发油用气相色谱-质分析了化学成分

    The essential constituents from duke blueberry fruits were extracted by steam distillation method and the essential oil obtained was analyzed by gas chromatography-mass spectrometry.

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  • 蒸气蒸馏提取了赤本泌桉叶精油通过气相色谱-质谱(GC-MS)联用分析鉴定了二者的化学成分质量分数。

    The essential oils of leaves from Eucalyptus camaldulensis and Eucalyptus benthami were extracted by steam distillation and their chemical constituents were determined by GC-MS method.

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  • 目的了解蒸气蒸馏提取中药挥发油存在问题解决方

    ObjectiveTo understand the questions and solutions in extraction volatile oils from the traditional Chinese medicine by vapour distillation.

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  • 恒温恒湿条件湿检测涂料游离涂透汽性,从而建立了一种简捷实用蒸气透过检测方

    Under the condition of constant temperature and constant humidity, the water vapor penetration rate of the separate coatings film is tested by the wet cup method that is simple and practical.

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  • 结果数字编号弥补了灭菌手术包内压力蒸气灭菌化学指示卡粘贴不足,使方便、适用

    Results Digital coding can make up the deficiency of chemical indicator strip, and it is a simple and feasible method in practice.

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  • 目的比较固相微萃取蒸气蒸馏提取蜘蛛香挥发油成分差异。

    OBJECTIVE: To evaluate the solid-phase microextraction versus Steam distillation in the extraction of volatile oil in Jatamans Valeriana Rhizome.

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  • 本文围绕水蒸气蒸馏连续生产松香松节油过程实现对蒸馏控制问题而展开

    This thesis is developed on an existing problem for the control of distill column in the process of rosin and turpentine production by continuous vapor distillation.

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  • 采用水蒸气蒸馏巴旦木杏仁中提取挥性化学成分,用气相色谱-质对化学成分进行鉴定。

    The volatile chemical components extracted from the almond of Prunus amygdalus Stokes was abstracted by steam-stilling and analyzed by GC-MS method.

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  • 采用水蒸气蒸馏梨花中提取挥发油用气色谱-质谱对化学成分进行鉴定。

    The essential oil from the flowers of Pyrus betulaefolia Bunge was abstracted by steam-stilling and analyzed by capillary GC-MS method.

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  • 采用水蒸气蒸馏梨花中提取挥发油用气色谱-质谱对化学成分进行鉴定。

    The essential oil from the flowers of Pyrus betulaefolia Bunge was abstracted by steam-stilling and analyzed by capillary GC-MS method.

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